Answer:
Respiration
Explanation:
That's breathing system
Explain why gametes cannot be made by mitosis
Gametes cannot be made by mitosis because mitosis does not reduce the chromosome number of the daughter cells.
WHAT IS MITOSIS?
MITOSIS is the kind of cell division in which a single parent cell results in two daughter cells that are genetically identical to one another. The two daughter cells have the same number of chromosomes as the parent cell.WHAT ARE GAMETES?
Gametes are sex cells used for sexual reproduction in certain organisms. Two gametes (one from male called sperm and the other from female called egg) comes together to form a zygote which later grows into a full organism. Note, these two gametes must possess half number of chromosomes as the parent organism.WHY MITOSIS CANNOT PRODUCE GAMETES?
Since mitosis gives rise to same number of chromosomes as parent cell, it is impossible for mitosis to make gametes, which must be half number of chromosomes as parent cell.For example, a somatic human cell contains 46 chromosomes. This means that gametes must contain 23 chromosomes each. However, MITOSIS results in two daughter cells with 46 chromosomes each.
Hence, mitosis cannot make gametes because it does not reduce the chromosome number of the daughter cells.
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What term describes the average weather conditions in a geographic area?
A. Precipitation
B. Temperature
C. Climate
DWeather
Which of the following is true about cellular respiration?
Answer:
It occurs in the cell memebrane- 4th option.
Hopefully this helps!
describe and experiment to demonstrate plasmolysis in spirogyra
Answer:
Sus células son semejantes y están reunidas en forma de filamento simp
Expla
Which is most associated with using fossil fuels to produce energy
Match the following DNA strand to its complementary strand of RNA
TTA - CAA - ACC - ATA
Question options:
AAU - GUU - UGG - UAU
AAT - GTT - TGG - TAT
AAU - CTT - TGG - TAT
ATG - CCG - AAT - TCG
Answer:
AAU GUU UGG UAU
Explanation:
In RNA thymine is no longer present and A matched with au
Why do you think the population growth rate has slowed overall but remains high in less developed countries?
Answer:
Prosperity, Diseases, Education & more.
Explanation:
In continents like Africa you have a lot of diseases and a lot of children who die because of the bad environment, diseases, no food and no water. The education especially the sexual education there isn't good or they didn't even have that topic once in their life. The children are supposed to go to work to give money to the family. More children, more money, right? The biggest reason is poverty and bad education. In China for example they have a problem with too many people, that's why they can get only 1-2 children. In high educated and wealth countries people know it's harder to work with children. The work time, flexibility and more will be much harder with children. People there know about sexual education, how to have safe sex and all those things you learned. I live in Germany and we have a problem with people having no children.
Everyone reading this text, have a nice day :D
Children are needed in emerging nations as a labor force and to care for their aging parents. Due to the lack of access to contraception and generally lower levels of female education in these nations, fertility rates are higher.
What is population growth?Population growth is defined as the growth due to the fact that the human population is not a static component, one of the main problems of the modern world. The majority of human history saw a relatively steady population size.
Due to outdated customs or a fear of educated women, some nations enforce the absence of education for women. The resources are not available in other nations. Some of the most distant locations, mostly in Africa, are still without access to birth control information. Even fewer people have access to birth control, so unintended pregnancies go uncontrolled.
Thus, children are needed in emerging nations as a labor force and to care for their aging parents. Due to the lack of access to contraception and generally lower levels of female education in these nations, fertility rates are higher.
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During the process of photosynthesis, which of the following is being created by producers
Answer:
choices please
Explanation:
which of the following is not a type of covalent bond?
A. single covalent
B. double covalent
C. triple covalent
D. tetra covalent
Answer:
D. tetra covalent, is not a type of covalent bond
Explanation:
When the concentration of molecules are equal on both sides of the cell membrane, the water will....
Answer:
Move in and out of the cell evenly
Explanation:
In the passive and active transport, the solute move from lower concentration to higher concentration. In the passive transport cellular energy is not required while in active transport, cellular energy is required.
But, when the concentration of molecules are equal on both sides of a membrane, even though the movement of molecules does not stop and molecules keep their movement in and out of the cell evenly.
Hence, the correct answer is "Move in and out of the cell evenly".
Which is the organ that does maximum works in human body?
GIVE ME CORRECT ANSWERS OR I SHALL REPORT ANSWER
but if u ans properly i shall give braniest
Answer:
heart
Explanation:
because it pumps the blood and purifies blood through heart
answer is heart
Explanation:
because it helps to purifies blood from heart
Define Natural Selection and provide an example
Answer:
Natural Selection is the process of which Organisms better adapted to a environment survive and reproduce longer
Explanation:
A Kangaroo rat Survives and reproduces because it adapted to not drinking water for long amounts of time.
A black rat however would not be able to Reproduce and Survive.
21
22
23
24
25
C
During transcription, what happens to the RNA polymerase if a repressor protein attaches to the operator?
O It begins transcription
It begins translation.
It cannot attach to enzyme 1.
It cannot attach to the promoter.
Answer:
translation
Explanation:
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Answer:
banana bread is the best
Explanation:
it is true
how many atoms are in sulfur trioxide
Answer:
There are 6.87 x 1023 atoms in 1.14 mol SO3, or sulfur trioxide (mol is the abbreviation for mole).
Explanation:i hope this right
Describe how nitrogen in proteins in dead leaves is recycled to be absorbed by plants? Please help!
Answer:
stages of the nitrogen cycle
1. Nitrogen-fixation
Legume plants such as peas, beans and clover contain nitrogen-fixing bacteria. These bacteria live in swellings in the plant roots called nodules. Nitrogen-fixing bacteria convert nitrogen gas from air into a form that plants can use to make proteins.
Free-living nitrogen-fixing bacteria are also found in the soil. When they die the nitrogen they have fixed into their biomass is converted into ammonium.
2. Feeding
Animals consume plant protein, digest it using specific enzymes and absorb the free amino acids.
3. Production of nitrogenous waste products
Animals cannot store excess protein in their bodies. They break it down and turn it into waste products and excrete them from their bodies.
4. Decomposition
Decomposers (some free-living bacteria and fungi) break down animal and plant proteins (from dead organisms) and nitrogenous waste products to release energy. As a result of decomposition nitrogen is released into the soil in the form of ammonium.
5. Nitrification
A group of free-living soil bacteria called nitrifying bacteria convert ammonium into nitrates in order to obtain energy.
6. Uptake of nitrates
Non-legume plants absorb nitrates from the soil into their roots and use the nitrates to produce their proteins.
7. Denitrification
This is when bacteria in the soil convert the nitrate back into nitrogen gas which then gets released back into the atmosphere.
Nitrogen-fixing bacteria take nitrogen gas from the air and transform it into a form that plants can use to build proteins.
Nitrogen-fixing and nitrogen in proteins:The nitrogen they have fixed into their biomass is transformed to ammonium when they die. In the soil, free-living nitrogen-fixing bacteria can also be discovered.
Nitrogen-fixing bacteria may be found in legume plants such as peas, beans, and clover. These bacteria dwell in nodules, which are swellings in the plant roots. Nitrogen-fixing bacteria transform nitrogen gas from the air into a form that may be used by plants to create proteins.
Find out more information about 'Nitrogen-fixing'.
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Can anyone help????????
Temperate climates include tundra climates,
True
False
Answer:
true
Explanation:
Tundra climate, major climate type of the Köppen classification characterized by sub-freezing mean annual temperatures, large annual temperature ranges.
A primary consum has 13.000 joules. Based on the energy flow between trophic levels in an energy pyramid, how much energy would be expected to be found at the tertiary consumer level in this pyramid?
A. 12 joules
B. 130 joules
C. 1,300 joules
D. 13,000 joules
Answer:
B
Explanation:
As you move up the energy pyramid, consumers receive 10% energy (Joules) from the organism they are receiving from.
What gas does a plant release for animals and humans to use? What would happen if that gas was not released from
plants?
Answer:
What gas does a plant release for animals and humans to use?
oxygen
The oxygen that is produced is released from the same tiny holes through which the carbon dioxide entered. Even the oxygen that is released serves another purpose. Other organisms, such as animals, use oxygen to aid in their survival. The whole process of photosynthesis is a transfer of energy from the Sun to a plant.
What would happen if oxygen was not released from plants?
We would be long gone before the oxygen ran out. Assuming only green plants disappeared, we would still have phytoplankton, microscopic algae and bacteria that live in the oceans and photosynthesise the same way land plants do. They are at the bottom of the food chain, so life in the oceans would continue.
We need oxygen to live & plants need carbon dioxide. We need oxygen to breathe & plants need carbon dioxide to make their food (photosynthesis)
When you turn on a lamp, energy is transferred electricity into light and _____ energy stores ,which are dispersed into the surroundings. (what word completes the sentence)
Answer:
Heat or Thermal
Explanation:
Answer:
The right answer is "heat" or "thermal"
Explanation:
Electric lamps generate both light and heat. Heat energy is stored in thermal energy stores.
Why are enzymes considered reused ?
Enzymes serve as catalysts to many biological processes, and so they are not used up in reactions and they may be recovered and reused. However, in a laboratory setting, reactions involving enzymes can leave the enzyme unrecoverable. -G00gle
Calculate the efficiency of a hair dryer which takes in 3000J of energy per second and transfers 600J as useful heat energy. Calculate the efficiency of the hair dryer.
Answer:
The efficiency of the hair dryer is 0.2 or 20%
Explanation:
The efficiency of a machine or any appliance is a measure of the useful work done by the machine when an effort is applied to the machine. The higher the efficiency of a machine, the more useful work the machine does.
Due to the economical and environmental impact of energy production, machines and appliances of high efficiency are being developed and recommended for domestic as well as industrial use nowadays.
In electrical appliances, energy is usually supplied by electrical power units. The higher the efficiency of an electrical appliance, the less power it consumes to do useful work. For a hair dryer which takes in 3000 J of energy per second and transfers 600 J of useful heat energy, its efficiency is calculated with formula below:
efficiency = useful energy / total energy input
Efficiency = 600 J / 3000 J = 0.2
Therefore, the efficiency of the hair dryer is 0.2 or 20%
what are formed when minerals replace all or part of an organism?
Answer:
Petrified fossils are formed when minerals replace all or part of an organism.
How do the cells of all organisms use chemical reactions?
Explanation:
Cellular processes such as the building and breaking down of complex molecules occur through step-by-step chemical reactions. All of the chemical reactions that take place inside cells, including those that use energy and those that release energy, are the cell's metabolism.
A medusa form cnidarian is sessile, meaning it is fixed spot.
TRUE
OR
FALSE
Answer:
false
Explanation:
A remote community desperately needs more electrical energy. It is located in
an area with the following characteristics:
• Average wind speed of 0 - 5 km/hr
• One small river with slow-moving currents
• Few coal deposits
. Mostly sunny days, very few clouds
Based on the above information, which energy source would be the most
economical and safest for the community to pursue?
O A. Hydroelectric
O B. Wind
O O O
C. Fossil fuel
O D. Solar
Body systems in the human body work together to support the essential life functions of the body. The urinary system is under influence of several other body systems to help it function properly. Which of these CORRECTLY pairs a body system and its influence on the urinary system?
Question 31 options:
The nervous system releases the hormones, ADH and aldosterone, which adjust the rates of fluid and electrolyte reabsorption in the kidneys.
The nervous system monitors distention of the bladder, controlling urination.
The cardiovascular system makes erythropoietin to make new red blood cells.
The digestive system excretes wastes not filtered by the kidneys.
Answer:
The urinary system works with the digestive system and in other systems in your body. It releases the waste from the food they digest and it also works with the circulatory system. It works in other systems in the body to help the body maintain the homeostasis says the Biologists. The waste product is kept dissolved in the liquid (water) and in mammals is stored in a bladder. The work of the kidney inside the body is to maintain acid and water-salt levels of the blood. It releases the waste in the body and it also filters the blood inside of you.
Explanation:
I dont know if this helps but its what I have gotten told. I know its not the exact answer but when i looked up your question its what i got.
Answer:
The nervous system monitors distention of the bladder, controlling urination.
Explanation:
The endocrine system releases the hormones, ADH and aldosterone, which adjust the rates of fluid and electrolyte reabsorption in the kidneys. The kidneys make erythropoietin to make new red blood cells for the cardiovascular system. The digestive system absorbs water needed by the kidneys to excrete wastes.
(☞ﾟヮﾟ)☞ I hope that helps ╰(*°▽°*)╯
The two sides of the DNA helix are held together by
Answer:
By hydrogen bonds
Explanation:
The two "steps" are made from base pairs formed between the nitrogenous bases. The DNA double helix is held together by Hydrogen bonds between the bases attached to the two strans
